This comparison uses public regulatory filings and TFS methodology. It evaluates financial condition—not checking rates, account fees, service quality, or which institution is universally “best.”
Bank
Rock Falls, IL
Health score
70.5
Total assets
$318.4M
Answer first
1NB Bank leads on financial health and profitability and lending quality and growth; Community State Bank of Rock Falls leads on capitalization. Those category leads describe current regulatory metrics only and do not establish a universal product or service winner.
Capital and asset-quality definitions are directly comparable for this pair.
Category leaders
Financial health
1NB Bank
Higher TFS health score
Capitalization
Community State Bank of Rock Falls
Higher comparable capital ratio
Profitability
1NB Bank
Higher return on assets
Lending quality
1NB Bank
Lower problem-loan measure
Growth
1NB Bank
Higher year-over-year asset growth
Same-source detail
Winner markers appear only where the metric definitions are comparable and both values are available.
| Metric | 1NB Bank | Community State Bank of Rock Falls |
|---|---|---|
| TFS health score | 81.7/100Leads | 70.5/100 |
| Total assets | $319.0M | $318.4M |
| Total deposits / shares | $260.1M | $280.6M |
| Tier 1 capital ratio | 10.29% | 12.00%Leads |
| Return on assets | 1.08%Leads | 0.86% |
| Return on equity | 11.56%Leads |
1NB Bank
4 branches
Community State Bank of Rock Falls
5 branches
Both institutions report branches in 1 state: IL.
1NB Bank
Unavailable
Community State Bank of Rock Falls
Unavailable
Counts use an explicitly reviewed CFPB-company-to-regulatory-ID mapping and the same complete 12-month window. Parent-company attribution can include complaints involving affiliates. Lower complaint volume is context—not proof of better service or less consumer harm.
1NB Bank
0 in TFS registry
Community State Bank of Rock Falls
0 in TFS registry
Institution-level actions come from TFS's exact regulatory-ID registry and are shown as factual context only. They do not affect category winners or the TFS Financial Health Grade. A zero means no action is currently published in this curated registry—not proof that none exists.
Quarterly history
| Quarter | 1NB Bank score | 1NB Bank ROA | Community State Bank of Rock Falls score | Community State Bank of Rock Falls ROA |
|---|---|---|---|---|
| 2024-Q3 | — | 0.72% | — | 0.63% |
| 2024-Q4 | — | 0.69% | — | 0.64% |
| 2025-Q1 | — | 0.73% | — | 0.66% |
| 2025-Q2 | — | 0.81% | — | 0.71% |
| 2025-Q3 | — | 0.90% | — | 0.72% |
| 2025-Q4 | — | 1.01% | — | 0.67% |
| 2026-Q1 | 77.8/100 |
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Coverage boundaries
Related comparisons
Financial data comes from FDIC BankFind Suite or NCUA Call Reports as labeled. TFS Health Grades are an editorial assessment, not an official government rating or financial advice. Arbitrary comparison pairs are available dynamically but remain noindex unless curated for data completeness and user value.
| 8.01% |
| Non-performing loans | 0.07%Leads | 4.67% |
| Net charge-offs | 0.02%Leads | 0.03% |
| Efficiency ratio | 52.99%Leads | 68.51% |
| Loan-to-deposit ratio | 81.57% | 75.80% |
| Asset growth (YoY) | 8.84%Leads | 0.60% |
| Deposit / share growth (YoY) | 4.78%Leads | -0.11% |
| Branches | 4 | 5 |
| Published CFPB complaints per $1B deposits (12 months)verified mappings only | — | — |
| 0.92% |
| 72.9/100 |
| 0.80% |
| 2026-Q2 | 81.7/100 | 1.08% | 70.5/100 | 0.86% |